1366 - Incorrect integer value: '' for column `shop_db3`.`whos_online`.`customer_id` at row 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('', 'Guest', '746199a482ea7e901e472112ce8ef9f5', '3.128.203.143', '1714192995', '1714192995', '/product_info.php?info=p52_Trompeten-Galopp--Polka-.html&XTCsid=2e913f95d614b725a3e8a823e845d351')

[XT SQL Error]